The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2016
Filed:
Sep. 28, 2012
Feng Liu, San Ramon, CA (US);
Jinqiu Zhang, Irvine, CA (US);
Zhigang Bai, Milpitas, CA (US);
Yugang Wang, Milpitas, CA (US);
Feng Liu, San Ramon, CA (US);
Jinqiu Zhang, Irvine, CA (US);
Zhigang Bai, Milpitas, CA (US);
Yugang Wang, Milpitas, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A main pole of a perpendicular magnetic recording write head is disclosed with a non-rectangular shape at the air bearing surface and a rectangular shape behind the air bearing surface. The main pole transitions from the non-rectangular shape to a rectangular shape at a distance of 10 nm to 100 nm behind the air bearing surface. The main pole includes leading and trailing beveled surfaces that extend from the non-rectangular shape of the pole at the air bearing surface toward the rectangular shape transition.